It depends on what the buyer is expecting. FAA will print and send out a 60 inch print with a file that other sites may limit to 24x36 or maybe 36x48. If the buyer is expecting the 60 inch print to be as sharp as a 12x18 print, chances are they will be disappointed. When someone looks at a 12x18 inch print they'll probably be standing a lot closer to it than they will a 60 inch print. If they stand 2 feet from a 60 inch print, the detail isn't going to look as sharp as if they look closely as a 12x18 inch print.